add image map script to post

when i add this script to my post html editor :

<div style="text-align:center; width:1100px; margin-left:auto; margin-right:auto;">
<img id="wordlmap" src="http://img.mywordpresstips.com/posts/worldmap-1024x449.png" usemap="#wordlmap" border="0" width="1100" height="489" alt="" />
<map id="wordlmap" name="wordlmap">
<area shape="rect" coords="845,267,929,324" href="/australia" alt="australia" title="australia"/>
</map>
</div>

after updating post, i only get:

<div style="text-align:center; width:1100px; margin-left:auto; margin-right:auto;">
<img id="wordlmap" src="http://img.mywordpresstips.com/posts/worldmap-1024x449.png" usemap="#wordlmap" border="0" width="1100" height="489" alt="" />

</div>  

can someone help me please, thanks in advance

Solutions Collecting From Web of "add image map script to post"

The post content is filtered by kses, but you can extend the list of allowed tags. A search in the plugin directory for kses shows some useful results.

Try Extend KSES, it seems to be exactly what you need (I haven’t tested it):

This plugin extends the HTML functionalify of the WordPress kses.php file, which states the allowable HTML that the post/page content editor will accept.
It allows the site administrator to check pre-defined HTML tags that can also be allowed via the editor. Tags include: object, embed, param, iframe, map and extensions have been added to the div and img tags.